Which type of organization is NOT typically included in the third sector?

The third sector, also known as the voluntary or nonprofit sector, primarily consists of organizations that are driven by a social mission rather than profit. This includes registered charities, non-government organizations (NGOs), and voluntary groups, all of which aim to address societal needs and improve community welfare.

Private companies, on the other hand, exist primarily for profit generation and are part of the business sector, which focuses on commercial activities and financial gains. Unlike organizations in the third sector, private companies distribute profits to shareholders and are not primarily concerned with social objectives. Thus, they are distinctly outside the scope of what constitutes the third sector.

The other types of organizations listed are inherently oriented towards social impact, making private companies the clear choice as not being typically included in the third sector.